ASR is a DR strategy for your environment in which you maintain a business continuity and a disaster recovery (BCDR) strategy that keeps your data safe, and your apps and workloads online, when planned and unplanned outages occur.

Azure Site Recovery helps ensure business continuity by keeping business apps and workloads running during outages. Site Recovery replicates workloads running on physical and virtual machines (VMs) from a primary site (Hyper-V in this Tutorial) to a secondary location (Azure). When an outage occurs at your primary site, you fail over to secondary location, and access apps from there. After the primary location is running again, you can fail back to it.

ASR process from Azure Portal step by step :

1. You need to have Azure account.
2. Create storage account or check if you have one already craeted.
3. Create a virtual network or check if you have one already created.
4. Create recovery services vault.
5. Prepare infrastructure step by step:
1. Create Hyper-V site
2. Connect Hyper-V host + install setup on Hyper-V host
3. Create policy.

6. Start Replication of VM (takes time according to network bandwidth and size of VM).
7. Check if VM protected and healthy.
8. Make a test failover.

9. Finished.

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